Or a simpler example to fate.scion's question: Get shadow cut as a rogue and switch class to one that can't use daggers. Without the mod even setting trickery as your sub command won't let you shadow cut, unless you have and equip the use dagger passive and a dagger.

With the mod, you can shadow cut with your fists.

Replying to fate.scion I think what this mod does is: Suppose as a rogue i unlock the passive to equip daggers as any class, then I switch to monk and equip the passive and a dagger. Well without this mod if I unlock the earth based attacks I cant use it because it requires unarmed/staffs but with this mod it should be able to work with the dagger.

(Note: I haven't tested it yet but this is what I ran into on the demo)

Doesn't work. You can still only equip what your primary job allows and subjob skills aren't usable. Even a ranger with a dagger can't use the bow skills. I am confused what this mod is for.

Would this work on modded classes too or just the base game classes?